OPENSUSE-SU-2026:21572-1 Security update for ffmpeg-7

This update for ffmpeg-7 fixes the following issues: - CVE-2026-64830: Heap Buffer Overflow via VobSub Subtitle Demuxer bsc1272752. - CVE-2026-64832: Double-Free in NVDEC Hardware Decoder via nvdec.c bsc1272754. - CVE-2026-64835: Out-of-Bounds Memory Access in ADX Audio Decoder bsc1272758. -...